Update Slate_API.md

Roberto De Ioris · web-flow · commit bb8e2f156a8a · 2018-09-07T14:34:30.000+02:00
diff --git a/docs/Slate_API.md b/docs/Slate_API.md
@@ -621,5 +621,41 @@ Basically the .assign(global_name) method, will map the SWidget to the global it
 Very useful for managing boolean values:
 
 ```python
+from unreal_engine import SWindow, SEditableTextBox, SHorizontalBox, SButton, SCheckBox, STextBlock
+from unreal_engine.classes import Object
+from unreal_engine.enums import EVerticalAlignment
+import unreal_engine as ue
 
+asset_name=None
+checkbox_bool=False
+
+def open_or_validate(path, only_validate):
+    try:
+        asset = ue.load_object(Object, path)
+    except:
+        ue.message_dialog_open(ue.APP_MSG_TYPE_OK, 'invalid path')
+        return
+        
+    if only_validate:
+        ue.message_dialog_open(ue.APP_MSG_TYPE_OK, 'path is valid')
+    else:
+        ue.open_editor_for_asset(asset)
+
+window = SWindow(client_size=(512, 32), title='Open Asset', sizing_rule=0)(
+    SHorizontalBox()
+    (
+        SEditableTextBox().assign('asset_name')
+    )
+    (
+        STextBlock(text='only validate path'), auto_width=True, v_align=EVerticalAlignment.VAlign_Center
+    )
+    (
+        SCheckBox().assign('checkbox_bool'), auto_width=True
+    )
+    (
+        SButton(text='Ok', on_clicked=lambda: open_or_validate(asset_name.get_text(), checkbox_bool.is_checked())), auto_width=True
+    )
+)   
 ```
+
+![SCheckBox](https://github.com/20tab/UnrealEnginePython/raw/master/docs/screenshots/slate_SCheckBox.png)
